Coal mine geological drilling rig

Abstract

The invention relates to the field of geological drilling, in particular to a coal mine geological drilling device which comprises a shielding cover, a drill rod is arranged in the middle of the shielding cover in a penetrating mode, a sweeping mechanism is arranged in the shielding cover, a linkage mechanism is arranged at the top end of the shielding cover, and the sweeping mechanism is in transmission connection with the linkage mechanism. And a lifting mechanism is arranged between the shielding cover and the drill rod. When a U-shaped toothed plate descends along with a lifting plate under operation of a driving mechanism, synchronous rotation of two screw rods can be achieved, two ground inserting rods are controlled to move downwards, the ground inserting rods can be inserted into the ground firstly, then a drill rod drills the ground, stability during subsequent ground drilling is facilitated, and the drilling efficiency is improved. At the moment, after the drill rod drills the ground for a certain distance through the driving mechanism, a wedge-shaped block is extruded and moved through descending of an extrusion rod, so that a linkage mechanism is in transmission connection with a long gear, and a sweeping mechanism is further driven to sweep out soil and broken stones in a shielding cover.

Description

Technical Field

[0001] The invention relates to the technical field of geological drilling, and in particular to a coal mine geological drilling device. Background Art

[0002] Coal mine geological exploration is the work of using certain mechanical tools or excavation operations to go deep underground to understand the geological conditions. In places where there are few outcrops on the ground, the rock properties vary greatly, or the geological structure is complex, it is often impossible to understand the geological conditions by ground observation alone. This requires the use of geological exploration projects to understand and obtain the geological conditions and information deep underground in coal mines, so geological exploration drilling equipment is needed.

[0003] The existing patent application number is CN118187718A, a coal mine geological drilling device, which relates to the technical field of geological drilling, and includes a first support frame, a second support frame and a driving assembly, wherein the second support frame is fixedly mounted on the top of the first support frame, and the driving assembly is arranged in the second support frame, and also includes a drilling assembly, which is arranged in the driving assembly and is used for coal mine geological drilling, and the drilling assembly includes a first motor and a drill barrel, wherein the first motor is arranged on the driving assembly, the drill barrel is assembled on the output end of the first motor, and the drill barrel passes through the side of the first support frame; a protective assembly is arranged at the bottom of the first support frame, and is used to protect flying rocks generated when the drilling assembly is working, thereby preventing the staff from being splashed by flying rocks or flying chips, and at the same time, the blocked flying chips can be discharged to reduce the flying chips falling on the drill barrel and affecting the normal operation of the drill barrel.

[0004] Although the above disclosed device can prevent workers from being injured by flying stones or flying chips during drilling, the protective cover is fixed to the bottom of the support frame and in contact with the ground, and has no lifting characteristics. The protective cover is always attached to the ground, making it inconvenient to move the subsequent device. In addition, when drilling, the above device only relies on a single cross plate to support the device, which makes it difficult to ensure the stability of the drilling device, making the drilling device prone to large shaking during operation, thereby affecting the stability of drilling. The present invention provides a coal mine geological drilling device to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a coal mine geological drilling device to solve the problem that the above-mentioned protective cover is fixed at the bottom of the support frame and in contact with the ground, and does not have the characteristics of lifting and lowering. The protective cover is always attached to the ground, which makes it inconvenient to move the subsequent device. In addition, when drilling, the above-mentioned device only relies on a single cross plate to support the device, and it is difficult to ensure the stability of the drilling device.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A coal mine geological drilling device comprises a shielding cover, a drill rod is penetrated through the middle of the shielding cover, a cleaning mechanism is arranged inside the shielding cover, a linkage mechanism is arranged at the top of the shielding cover, and the cleaning mechanism is transmission-connected with the linkage mechanism, a lifting mechanism is arranged between the shielding cover and the drill rod, a U-shaped tooth plate is rotationally connected to the surface of the drill rod, a driving mechanism is arranged at the top of the drill rod, and the drill rod is lowered and rotated by the driving mechanism, the driving mechanism is transmission-connected with the linkage mechanism, moving seats are arranged on both sides of the shielding cover, and the driving mechanism is arranged between the two moving seats, a ground insertion mechanism is arranged on one side of the two moving seats, and the two ground insertion mechanisms are transmission-connected with the U-shaped tooth plate.

[0007] Preferably, the cleaning mechanism includes a fixed ring, a plurality of discharge ports are provided at the bottom of the shielding cover, the fixed ring is fixedly connected to the inner top wall of the shielding cover, a bearing is installed on the surface of the fixed ring, the fixed ring is rotatably connected to a gear ring through the bearing, a plurality of vertical poles are fixedly connected to the bottom surface of the gear ring, and an L-shaped cleaning plate is fixedly connected to the bottom end of each of the vertical poles, and the arc portion of the L-shaped cleaning plate corresponds to the discharge port.

[0008] Preferably, the linkage mechanism includes a first rotating rod, a base and a long gear, the long gear is fixedly connected to the surface of the drill rod, the base is fixedly connected to the top of the shielding cover through a bracket, the first rotating rod is rotatably connected to the top of the shielding cover, the bottom end of the first rotating rod extends into the shielding cover and is fixedly connected to a first gear meshing with a gear ring, the top end of the first rotating rod passes through the base and is fixedly connected to a fourth gear, a U-shaped frame is elastically and slidably provided on the base, a second rotating rod is rotatably connected to the U-shaped frame, the middle and top of the second rotating rod are respectively fixedly connected to a third gear and a second gear, and the third gear is flush with the fourth gear.

[0009] Preferably, a slide groove is provided on the base, and a guide rod is fixedly connected in the slide groove, a slider is fixedly connected to the bottom end of the U-shaped frame, the slider is sleeved on the guide rod and slides in the slide groove, a compression spring is fixedly connected to the slider, and one end of the compression spring is fixedly connected to the inner wall of the slide groove.

[0010] Preferably, an extrusion rod is fixedly connected to the U-shaped tooth plate, a push rod is fixedly connected to the left side of the U-shaped frame, one end of the push rod is fixedly connected to a wedge block, and the bottom end of the extrusion rod is matched with the wedge block.

[0011] Preferably, the lifting mechanism includes a lifting plate, which is rotatably connected to the surface of the drill rod, and the top of the shielding cover is fixedly connected with a positioning rod and an L-shaped plate, and the top of the positioning rod slides through the lifting plate and is fixedly connected to the top of the L-shaped plate, and the U-shaped tooth plate is provided with an avoidance groove corresponding to the L-shaped plate.

[0012] Preferably, the driving mechanism includes a lifting plate, a motor and two hydraulic rods, the two hydraulic rods are respectively installed in the middle of the moving seat, the motor is installed in the middle of the lifting plate, the top of the drill rod is connected to the output end of the motor, the telescopic ends of the two hydraulic rods are fixedly connected to the lifting plate, a fixing rod is fixedly connected to the U-shaped tooth plate, and the fixing rod is connected to the lifting plate.

[0013] Preferably, telescopic sleeves are hinged on the surfaces of the two hydraulic rods, and telescopic ends of the two telescopic sleeves are hinged on the surface of the shielding cover.

[0014] Preferably, the ground insertion mechanism includes a fixed frame, which is fixedly connected to the surface of the hydraulic rod, and the middle part of the fixed frame is rotatably connected to the third rotating rod, the middle part of the third rotating rod is fixedly connected to the fifth gear, and the side teeth of the U-shaped toothed plate are meshed with the fifth gear, both ends of the fixed frame are rotatably connected to screws, the top of each screw is fixedly connected to the second bevel gear, both ends of the third rotating rod are fixedly connected to the first bevel gear, and the first bevel gear is meshed with the corresponding second bevel gear, each screw is threadedly sleeved with a ground insertion rod, a cross bar is fixedly connected between the two ground insertion rods, a positioning frame is fixedly connected to the side of the fixed frame, and the bottom end of the U-shaped toothed plate slides through the positioning frame.

[0015] Preferably, both ends of each of the movable seats are fixedly connected to a guide frame, both ends of the lifting plate are fixedly connected to a side plate, one end of each of the side plates is rotatably connected to a roller, and the roller slides in the corresponding guide frame, a protective plate is fixedly connected between each two adjacent guide frames, and an inspection door is provided on the protective plate on the front.

[0016] The beneficial effects of the present invention are: 1. Through the setting of the shielding cover, moving seat, drill rod, U-shaped tooth plate, squeezing rod, cleaning mechanism, linkage mechanism, driving mechanism and ground insertion mechanism, when the U-shaped tooth plate follows the lifting plate to descend under the operation of the driving mechanism, the two screws can be rotated synchronously and the two ground insertion rods can be controlled to move downward, so that the ground insertion rod will be inserted into the ground first, and then the drill rod will drill the ground, which is beneficial to the stability of subsequent ground drilling. Then, the drill rod will drill the ground for a distance through the driving mechanism, and then use the descent of the squeezing rod to squeeze and move the wedge block, so as to achieve a transmission connection between the linkage mechanism and the long gear, and further drive the cleaning mechanism to clean up the soil and gravel in the shielding cover, so as to avoid the accumulation of too much soil and gravel at the drilling port and affect the use of the drill rod, and the mechanism is always located in the shielding cover and will not occupy the external space.

[0017] 2. Through the setting of the lifting mechanism and two telescopic sleeves, when the drill rod rises through the driving mechanism, the bottom end of the drill rod will move upward from the shielding cover until the bottom end of the drill rod reaches the top of the shielding cover. At this time, the lifting plate will contact the L-shaped plate, and drive the L-shaped plate and the shielding cover to rise together, so that the shielding cover is away from the ground, so as to facilitate the movement of the device and avoid the shielding cover from rubbing against the ground when the device moves. When the drill rod is descending, the L-shaped plate and the shielding cover will also descend together with gravity until the shielding cover is in contact with the ground, thereby shielding and protecting against soil and gravel during drilling, and the two telescopic sleeves ensure the stable up and down movement of the shielding cover to avoid shaking of the shielding cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention without the protective plate; Figure 3 It is a structural schematic diagram of the ground insertion mechanism of the present invention; Figure 4 It is a top view of the structure of the shielding cover of the present invention; Figure 5 It is a front structural cross-sectional view of the shielding cover of the present invention; Figure 6 This is a schematic diagram of the connection structure of the lifting plate, the motor, the drill rod and the U-shaped tooth plate of the present invention; Figure 7 It is a schematic diagram of the connection structure between the U-shaped frame and the second rotating rod of the present invention; Figure 8 It is a structural schematic diagram of the cleaning mechanism of the present invention; Fig. 9 For the present invention Figure 2 A magnified schematic diagram of the structure at center A; Fig.10 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle; Fig.11 It is a structural schematic diagram of the lifting plate of the present invention.

[0019] In the figure: 1, shielding cover; 2, moving seat; 3, hydraulic rod; 4, lifting plate; 5, motor; 6, drill rod; 7, long gear; 8, lifting plate; 9, positioning rod; 10, L-shaped plate; 11, U-shaped tooth plate; 12, avoidance groove; 13, side plate; 14, guide frame; 15, protective plate; 16, telescopic sleeve; 17, screw; 18, ground rod; 19, L-shaped cleaning plate; 20, discharge port; 21, cross bar; 22, fixed frame; 23, bottom plate; 24, vertical pole; 2 5. First rotating rod; 26. First gear; 27. Bearing; 28. Gear ring; 29. ​​Fixed ring; 30. Fixed rod; 31. Extrusion rod; 32. Second gear; 33. Push rod; 34. Wedge block; 35. U-shaped frame; 36. Compression spring; 37. Second rotating rod; 38. Third gear; 39. Slider; 40. Base; 41. Fourth gear; 42. Positioning frame; 43. Fifth gear; 44. Third rotating rod; 45. First bevel gear; 46. Second bevel gear. DETAILED DESCRIPTION

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0021] A coal mine geological drilling device, as shown in the attached Figures 1 to 11As shown, it includes a shielding cover 1, a drill rod 6 is penetrated in the middle of the shielding cover 1, so that the drill rod 6 can slide normally in the middle of the shielding cover 1, and the drill rod 6 shields the materials splashed by drilling during the drilling process, and a cleaning mechanism is arranged inside the shielding cover 1, and the cleaning mechanism is used to sweep out the soil and gravel after being shielded in the shielding cover 1 to avoid excessive accumulation, and a linkage mechanism is arranged at the top of the shielding cover 1, and the cleaning mechanism is transmission-connected with the linkage mechanism, and a lifting mechanism is arranged between the shielding cover 1 and the drill rod 6, and the lifting mechanism can make the drill rod 6 drive the shielding cover 1 to rise after rising a certain distance, so that the shielding cover 1 is separated from the ground, and the overall movement of the device is ensured, and the surface of the drill rod 6 is rotatably connected with a U-shaped tooth plate 11, and teeth are arranged on both sides of the U-shaped tooth plate 11, and a driving mechanism is arranged at the top of the drill rod 6, and the drill rod 6 is driven by the linkage mechanism. The driving mechanism descends and rotates, and the driving mechanism is connected with the linkage mechanism by transmission. When the driving mechanism drives the drill rod 6 to rotate, it will drive the linkage mechanism to move, and then the linkage mechanism drives the cleaning mechanism to clean the soil and gravel in the shielding cover 1. No additional power equipment is required. Mobile seats 2 are provided on both sides of the shielding cover 1, and the driving mechanism is provided between the two mobile seats 2. The two mobile seats 2 can ensure that the device is easy to walk and move in the future. A ground insertion mechanism is provided on one side of the two mobile seats 2, and the two ground insertion mechanisms are connected with the U-shaped tooth plate 11 by transmission. When the driving mechanism drives the U-shaped tooth plate 11 to descend, the U-shaped tooth plate 11 will first drive the ground insertion mechanism to move, and insert the ground insertion mechanism into the ground to ensure the stability of the drill rod 6 in subsequent work. After the ground insertion mechanism is inserted into the ground, the drill rod 6 starts drilling.

[0022] As attached Figure 2 , Figure 4 , Figure 5 and Figure 8 As shown, the cleaning mechanism includes a fixed ring 29, and a plurality of discharge ports 20 are provided at the bottom of the shielding cover 1. The fixed ring 29 is fixedly connected to the inner top wall of the shielding cover 1. A bearing 27 is installed on the surface of the fixed ring 29. The fixed ring 29 is rotatably connected to a gear ring 28 through the bearing 27. The bottom surface of the gear ring 28 is fixedly connected to a plurality of vertical rods 24. The bottom end of each vertical rod 24 is fixedly connected to an L-shaped cleaning plate 19, and the arc portion of the L-shaped cleaning plate 19 corresponds to the discharge port 20. With the above-mentioned structure, when the gear ring 28 rotates in the shielding cover 1, it will drive each vertical rod 24 and L-shaped cleaning plates 19 rotate, and each L-shaped cleaning plate 19 rotates counterclockwise. In the initial state, the L-shaped cleaning plate 19 will block the discharge port 20 to prevent soil and gravel from splashing to the outside. After the drill rod 6 drills a certain distance on the ground, each L-shaped cleaning plate 19 will clean the soil and gravel in the shielding cover 1 to prevent excessive accumulation and affect the use of the drill rod 6, thereby cleaning the soil and gravel in the shielding cover 1 outwards to prevent excessive accumulation of soil and gravel at the drilling hole. Moreover, the mechanism is always located in the shielding cover 1 and will not occupy external space.

[0023] As attached Figure 4 , Figure 5 and Figure 7 As shown, the linkage mechanism includes a first rotating rod 25, a base 40 and a long gear 7, the long gear 7 is fixedly connected to the surface of the drill rod 6, the base 40 is fixedly connected to the top of the shielding cover 1 through a bracket, the first rotating rod 25 is rotatably connected to the top of the shielding cover 1, the bottom end of the first rotating rod 25 extends into the shielding cover 1 and is fixedly connected to the first gear 26 meshing with the gear ring 28, the top end of the first rotating rod 25 passes through the base 40 and is fixedly connected to the fourth gear 41, a U-shaped frame 35 is elastically slidably provided on the base 40, the second rotating rod 37 is rotatably connected to the U-shaped frame 35, and the fourth gear 41 is fixedly connected to the first rotating rod 25. The middle and top ends of the second rotating rod 37 are respectively fixedly connected with the third gear 38 and the second gear 32, and the third gear 38 is flush with the fourth gear 41. Through the setting of the above structure, when the second gear 32 is close to meshing with the long gear 7, the third gear 38 is also meshing with the fourth gear 41, and the second gear 32, the third gear 38, the second rotating rod 37, the fourth gear 41, the first rotating rod 25 and the first gear 26 can be driven to rotate under the rotation of the long gear 7, and finally the rotation of the gear ring 28 is realized without the use of additional electrical equipment.

[0024] As attached Fig. 9 As shown, a slide groove is provided on the base 40, and a guide rod is fixedly connected in the slide groove, a slider 39 is fixedly connected to the bottom end of the U-shaped frame 35, the slider 39 is sleeved on the guide rod and slides in the slide groove, a compression spring 36 is fixedly connected to the slider 39, and one end of the compression spring 36 is fixedly connected to the inner wall of the slide groove. Through the arrangement of the above structure, the sliding stability of the U-shaped frame 35 is guaranteed, and the second gear 32 of the U-shaped frame 35 is not engaged with the long gear 7, and the third gear 38 is not engaged with the fourth gear 41 in the normal state, so that the U-shaped frame 35 has an automatic reset effect.

[0025] As attached Figure 6 , Figure 7 and Fig. 9 As shown, an extrusion rod 31 is fixedly connected to the U-shaped toothed plate 11, and a pushing rod 33 is fixedly connected to the left side of the U-shaped frame 35. One end of the pushing rod 33 is fixedly connected to a wedge block 34, and the bottom end of the extrusion rod 31 is adapted to the wedge block 34. Through the setting of the above structure, when the lifting plate 4 drops a certain distance, the bottom end of the extrusion rod 31 will contact and squeeze the wedge block 34, so that the wedge block 34 and the pushing rod 33 push the U-shaped frame 35 to approach the long gear 7, which is used for the normal engagement of the second gear 32 with the long gear 7. At the same time, the third gear 38 will also engage with the fourth gear 41, which can drive the second gear 32 to rotate under the rotation of the drill rod 6, so that the second gear 32 drives the second rotating rod 37, the third gear 38 and the fourth gear 41 to rotate, and finally the first gear 26 drives the gear ring 28 to rotate, thereby ensuring that each L-shaped cleaning plate 19 can normally clean the soil and gravel in the shielding cover 1.

[0026] As attached Figure 2 As shown, the lifting mechanism includes a lifting plate 8, which is rotatably connected to the surface of the drill rod 6. A positioning rod 9 and an L-shaped plate 10 are fixedly connected to the top of the shielding cover 1, and the top end of the positioning rod 9 slides through the lifting plate 8 and is fixedly connected to the top end of the L-shaped plate 10. An avoidance groove 12 corresponding to the L-shaped plate 10 is opened on the U-shaped tooth plate 11. The avoidance groove 12 can avoid contact and collision with the L-shaped plate 10. Through the setting of the above structure, when the drill rod 6 rises through the driving mechanism, the bottom end of the drill rod 6 will move upward from the shielding cover 1 until the bottom end of the drill rod 6 reaches the top end of the shielding cover 1. At this time, the lifting plate 8 will contact the L-shaped plate 10 and drive the L-shaped plate 10 and the shielding cover 1 to rise together. After the lifting plate 8 contacts the L-shaped plate 10, the shielding cover 1 can be driven to rise together, so that the shielding cover 1 is away from the ground, so as to facilitate the movement of the device and avoid the shielding cover 1 from rubbing against the ground when the device moves.

[0027] As attached Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the driving mechanism includes a lifting plate 4, a motor 5 and two hydraulic rods 3, the two hydraulic rods 3 are respectively installed in the middle of the moving seat 2, the motor 5 is installed in the middle of the lifting plate 4, the top of the drill rod 6 is connected to the output end of the motor 5, the telescopic ends of the two hydraulic rods 3 are fixedly connected to the lifting plate 4, a fixing rod 30 is fixedly connected to the U-shaped tooth plate 11, and the fixing rod 30 is connected to the lifting plate 4. Through the setting of the above structure, the height of the lifting plate 4 can be driven to be adjusted by the synchronous operation of the two hydraulic rods 3, and then the drill rod 6 is driven to rotate by the operation of the motor 5, so that the drill rod 6 drills the coal mine area, and the U-shaped tooth plate 11 will not rotate on the surface of the drill rod 6, but can only move up and down with the drill rod 6.

[0028] As attached Figures 2 to 5 As shown, the surfaces of the two hydraulic rods 3 are hinged with telescopic sleeves 16, and the telescopic ends of the two telescopic sleeves 16 are hinged to the surface of the shielding cover 1. Through the setting of the telescopic sleeves 16, the stability of the shielding cover 1 can be guaranteed, and the misalignment between the shielding cover 1 and the drill rod 6 can be avoided, so that the shielding cover 1 can move up and down stably.

[0029] As attached Figure 2 , Figure 3 and Fig.10As shown, the ground insertion mechanism includes a fixed frame 22, which is fixedly connected to the surface of the hydraulic rod 3. The middle part of the fixed frame 22 is rotatably connected to the third rotating rod 44, and the middle part of the third rotating rod 44 is fixedly connected to the fifth gear 43, and the side teeth of the U-shaped toothed plate 11 are meshed with the fifth gear 43. When the teeth on the side of the U-shaped toothed plate 11 are meshed with the fifth gear 43, the third rotating rod 44 can be driven to rotate. When the teeth on the U-shaped toothed plate 11 are not meshed with the fifth gear 43, the third rotating rod 44 will not continue to be driven to rotate. Both ends of the fixed frame 22 are rotatably connected to the screw rod 17, and the top of each screw rod 17 is fixedly connected to the second bevel gear 46, and both ends of the third rotating rod 44 are fixedly connected to the first bevel gear 45, and the first bevel gear 45 is meshed with the corresponding second bevel gear 46. Each screw rod 17 is threadedly sleeved with a ground insertion rod 18, and the two A cross bar 21 is fixedly connected between the ground-inserting rods 18, and a bottom plate 23 is fixedly connected to the sides of the two movable seats 2. Each bottom plate 23 is provided with two through holes, and the bottom ends of the two ground-inserting rods 18 are respectively inserted into the two through holes. Through the setting of the above structure, when the U-shaped tooth plate 11 follows the lifting plate 4 to descend, the teeth on the U-shaped tooth plate 11 will be used to drive the fifth gear 43 to rotate, and then the third rotating rod 44 will drive the two first bevel gears 45 to rotate synchronously, and the two first bevel gears 45 will respectively drive the two second bevel gears 46 to rotate, further realizing the synchronous rotation of the two screw rods 17 and controlling the two ground-inserting rods 18 to move downward, so that the insertion into the ground has a role in stabilizing the device, which is beneficial to the stability during subsequent ground drilling, and when the device is drilling, the ground-inserting rod 18 will be inserted into the ground first, and then the drill rod 6 will drill the ground.

[0030] As attached Figure 3 and Fig.10 As shown, a positioning frame 42 is fixedly connected to the side of the fixed frame 22, and the bottom end of the U-shaped tooth plate 11 slides through the positioning frame 42. Through the setting of the positioning frame 42, the stability of the U-shaped tooth plate 11 during lifting and lowering can be guaranteed, and the accuracy of the meshing between the U-shaped tooth plate 11 and the fifth gear 43 is also guaranteed, thereby avoiding the position separation between the U-shaped tooth plate 11 and the fifth gear 43.

[0031] As attached Figures 1 to 3As shown, both ends of each moving seat 2 are fixedly connected with a guide frame 14, and both ends of the lifting plate 4 are fixedly connected with a side plate 13. One end of each side plate 13 is rotatably connected to a roller, and the roller slides in the corresponding guide frame 14. Through the setting of the guide frame 14 and the roller, the stability of the lifting plate 4 during lifting by the hydraulic rod 3 can be guaranteed, and the drilling rod 6 can be prevented from shaking the lifting plate 4 during operation. A protective plate 15 is fixedly connected between each two adjacent guide frames 14, and an inspection door is provided on the front protective plate 15. Through the setting of the protective plate 15, the rotating components therein can be protected to prevent accidental touch by the staff, and the inspection door can also facilitate the maintenance of the internal components by the personnel.

[0032] Working principle: When drilling on the ground of a coal mine, first move the device to the position where drilling is required, then start the driving mechanism, so that the U-shaped toothed plate 11 follows the lifting plate 4 to descend through the operation of the hydraulic rod 3, and the teeth on both sides of the U-shaped toothed plate 11 will drive the two fifth gears 43 to rotate simultaneously, thereby causing the corresponding third rotating rod 44 to drive the two first bevel gears 45 to rotate synchronously, and the two first bevel gears 45 to respectively drive the two second bevel gears 46 to rotate, further realizing the synchronous rotation of the two screws 17 and controlling the two ground insertion rods 18 to move downward, so that the ground insertion rods 18 are inserted into the ground, and the device The device has a stable structure, and when drilling, the ground rod 18 will be inserted into the ground first, and then the drill rod 6 will start to drill the ground, which is conducive to the stability of the subsequent ground drilling. Then, after the drill rod 6 drills the ground for a distance through the motor 5, the squeezing rod 31 is driven to descend by the continuous descent of the U-shaped tooth plate 11, and the wedge block 34 is squeezed and moved, so that the second gear 32 and the long gear 7 are close to and meshed, and the third gear 38 is also meshed with the fourth gear 41 at this time, so that the gear ring 28 can finally drive each L-shaped cleaning plate 19 to rotate, without the need for additional power equipment. Each L-shaped cleaning plate 19 cleans the dirt and gravel in the shielding cover 1, and cleans the dirt and gravel out from the discharge port 20, so as to avoid the accumulation of too much dirt and gravel at the drilling port and affecting the use of the drill rod 6, and the arc-shaped portion of the L-shaped cleaning plate 19 at the beginning can block the discharge port 20 to prevent the gravel from splashing from the discharge port 20, and the mechanism is always located in the shielding cover 1 and does not occupy the external space. When the drill rod 6 completes drilling, the operation of the hydraulic rod 3 is used to drive the drill rod 6 to rise until the bottom end of the drill rod 6 reaches the top of the shielding cover 1, at which time the lifting plate 8 will contact the L-shaped plate 10 and drive the L-shaped plate 10 together. The shielding cover 1 rises and moves away from the ground to facilitate the movement of the device, thereby preventing the shielding cover 1 from rubbing against the ground when the device moves, and the side teeth of the U-shaped tooth plate 11 will also re-engage with the fifth gear 43, thereby controlling the ground insertion rod 18 to be pulled out from the ground, making the device easy to move. When the drill rod 6 subsequently descends, the L-shaped plate 10 and the shielding cover 1 will also descend together with gravity until the shielding cover 1 is in contact with the ground, ensuring that the soil and gravel during drilling are shielded and protected by the shielding cover 1, and the two telescopic sleeves 16 ensure that the shielding cover 1 moves up and down stably to prevent the shielding cover 1 from shaking.

[0033] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A coal mine geological drilling device, characterized in that: The invention comprises a shielding cover (1), wherein a drill rod (6) is provided through the middle of the shielding cover (1), a cleaning mechanism is provided inside the shielding cover (1), a linkage mechanism is provided at the top end of the shielding cover (1), and the cleaning mechanism is in transmission connection with the linkage mechanism, a lifting mechanism is provided between the shielding cover (1) and the drill rod (6), a U-shaped tooth plate (11) is rotatably connected to the surface of the drill rod (6), a driving mechanism is provided at the top end of the drill rod (6), and the drill rod (6) is lowered and rotated by the driving mechanism, and the driving mechanism is in transmission connection with the linkage mechanism, movable seats (2) are provided on both sides of the shielding cover (1), and the driving mechanism is provided between the two movable seats (2), a ground insertion mechanism is provided on one side of the two movable seats (2), and the two ground insertion mechanisms are both in transmission connection with the U-shaped tooth plate (11).

2. A coal mine geological drilling device according to claim 1, characterized in that: The cleaning mechanism comprises a fixed ring (29), a plurality of discharge openings (20) are formed at the bottom of the shielding cover (1), the fixed ring (29) is fixedly connected to the inner top wall of the shielding cover (1), a bearing (27) is mounted on the surface of the fixed ring (29), the fixed ring (29) is rotatably connected to a gear ring (28) via the bearing (27), a plurality of vertical rods (24) are fixedly connected to the bottom surface of the gear ring (28), the bottom end of each vertical rod (24) is fixedly connected to an L-shaped cleaning plate (19), and the arc portion of the L-shaped cleaning plate (19) corresponds to the discharge opening (20).

3. A coal mine geological drilling device according to claim 2, characterized in that: The linkage mechanism comprises a first rotating rod (25), a base (40) and a long gear (7); the long gear (7) is fixedly connected to the surface of the drill rod (6); the base (40) is fixedly connected to the top of the shielding cover (1) through a bracket; the first rotating rod (25) is rotatably connected to the top of the shielding cover (1); the bottom end of the first rotating rod (25) extends into the shielding cover (1) and is fixedly connected to a first gear (26) meshing with a gear ring (28); the top end of the first rotating rod (25) passes through the base (40) and is fixedly connected to a fourth gear (41); a U-shaped frame (35) is elastically slidably provided on the base (40); a second rotating rod (37) is rotatably connected to the U-shaped frame (35); a third gear (38) and a second gear (32) are fixedly connected to the middle and top of the second rotating rod (37) respectively; and the third gear (38) is flush with the fourth gear (41).

4. A coal mine geological drilling device according to claim 3, characterized in that: The base (40) is provided with a slide groove, and a guide rod is fixedly connected in the slide groove. The bottom end of the U-shaped frame (35) is fixedly connected with a slider (39), and the slider (39) is sleeved on the guide rod and slides in the slide groove. The slider (39) is fixedly connected with a compression spring (36), and one end of the compression spring (36) is fixedly connected to the inner wall of the slide groove.

5. A coal mine geological drilling device according to claim 3, characterized in that: An extrusion rod (31) is fixedly connected to the U-shaped tooth plate (11), a push rod (33) is fixedly connected to the left side of the U-shaped frame (35), one end of the push rod (33) is fixedly connected to a wedge block (34), and the extrusion rod (31) is adapted to fit the wedge block (34).

6. A coal mine geological drilling device according to claim 3, characterized in that: The lifting mechanism comprises a lifting plate (8), the lifting plate (8) being rotatably connected to the surface of the drill rod (6), a positioning rod (9) and an L-shaped plate (10) being fixedly connected to the top of the shielding cover (1), and the top end of the positioning rod (9) slidingly passes through the lifting plate (8) and is fixedly connected to the top end of the L-shaped plate (10), and an avoidance groove (12) corresponding to the L-shaped plate (10) is provided on the U-shaped tooth plate (11).

7. A coal mine geological drilling device according to claim 1, characterized in that: The driving mechanism comprises a lifting plate (4), a motor (5) and two hydraulic rods (3), the two hydraulic rods (3) being respectively mounted at the middle of the moving seat (2), the motor (5) being mounted at the middle of the lifting plate (4), the top end of the drill rod (6) being connected to the output end of the motor (5), the telescopic ends of the two hydraulic rods (3) being fixedly connected to the lifting plate (4), the U-shaped tooth plate (11) being fixedly connected to a fixing rod (30), and the fixing rod (30) being connected to the lifting plate (4).

8. A coal mine geological drilling device according to claim 7, characterized in that: Telescopic sleeves (16) are hingedly connected to the surfaces of the two hydraulic rods (3), and telescopic ends of the two telescopic sleeves (16) are hingedly connected to the surface of the shielding cover (1).

9. A coal mine geological drilling device according to claim 7, characterized in that: The ground insertion mechanism comprises a fixing frame (22), the fixing frame (22) being fixedly connected to the surface of the hydraulic rod (3), the middle portion of the fixing frame (22) being rotatably connected to a third rotating rod (44), the middle portion of the third rotating rod (44) being fixedly connected to a fifth gear (43), and the side teeth of the U-shaped toothed plate (11) being meshed with the fifth gear (43), the two ends of the fixing frame (22) being rotatably connected to screw rods (17), the top end of each screw rod (17) being fixedly connected to a third rotating rod (44), Two bevel gears (46), both ends of the third rotating rod (44) are fixedly connected to the first bevel gear (45), and the first bevel gear (45) is meshed with the corresponding second bevel gear (46), each of the screw rods (17) is threadedly sleeved with a ground insertion rod (18), a cross bar (21) is fixedly connected between the two ground insertion rods (18), a positioning frame (42) is fixedly connected to the side of the fixing frame (22), and the bottom end of the U-shaped tooth plate (11) penetrates and slides in the positioning frame (42).

10. A coal mine geological drilling device according to claim 1, characterized in that: Both ends of each movable seat (2) are fixedly connected to a guide frame (14), both ends of the lifting plate (4) are fixedly connected to a side plate (13), one end of each side plate (13) is rotatably connected to a roller, and the roller slides in the corresponding guide frame (14), a protective plate (15) is fixedly connected between each two adjacent guide frames (14), and an inspection door is provided on the front protective plate (15).

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